Advertisements
Advertisements
प्रश्न
Simplify:
(a + b)3 + (a - b)3
योग
Advertisements
उत्तर
(a + b)3 + (a - b)3
= a3 + b3 + 3ab (a + b) + a3 - 3ab (a - b) - b3
= a3 + b3 + 3a2b + 3ab2 + a3 - 3a2b + 3ab2 - b3
= 2a3 + 6ab2.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
APPEARS IN
संबंधित प्रश्न
Find the cube of : 3a- 2b
If `a + 1/a` = p and a ≠ 0; then show that:
`a^3 + 1/a^3 = p(p^2 - 3)`
If `( a + 1/a )^2 = 3 "and a ≠ 0; then show:" a^3 + 1/a^3 = 0`.
If `3x - (1)/(3x) = 9`; find the value of `27x^3 - (1)/(27x^3)`.
If `x + (1)/x = 5`, find the value of `x^2 + (1)/x^2, x^3 + (1)/x^3` and `x^4 + (1)/x^4`.
If `"r" - (1)/"r" = 4`; find : `"r"^3 - (1)/"r"^3`
If `"a" + (1)/"a" = "p"`; then show that `"a"^3 + (1)/"a"^3 = "p"("p"^2 - 3)`
Evaluate the following :
(5.45)3 + (3.55)3
Expand: (3x + 4y)3.
a3 + b3 = (a + b)3 = __________
